Allow feature configuration and cc toolchain to be None without crashing

PiperOrigin-RevId: 403084297

src/main/java/com/google/devtools/build/lib/rules/cpp/CcModule.java

diff --git a/src/main/java/com/google/devtools/build/lib/rules/cpp/CcModule.java b/src/main/java/com/google/devtools/build/lib/rules/cpp/CcModule.java
index 77328a0..5a05291 100644
--- a/src/main/java/com/google/devtools/build/lib/rules/cpp/CcModule.java
+++ b/src/main/java/com/google/devtools/build/lib/rules/cpp/CcModule.java
@@ -615,6 +615,8 @@
     Artifact resolvedSymlinkDynamicLibrary = null;
     Artifact resolvedSymlinkInterfaceLibrary = null;
     if (dynamicLibrary != null
+        && featureConfiguration != null
+        && ccToolchainProvider != null
         && !featureConfiguration
             .getFeatureConfiguration()
             .isEnabled(CppRuleClasses.TARGETS_WINDOWS)) {
@@ -644,6 +646,8 @@
       }
     }
     if (interfaceLibrary != null
+        && featureConfiguration != null
+        && ccToolchainProvider != null
         && !featureConfiguration
             .getFeatureConfiguration()
             .isEnabled(CppRuleClasses.TARGETS_WINDOWS)) {